55731
Ely, MN
St. Louis County · Duluth, MN-WI metro area
ELY

Is Ely tap water safe to drink?

Some concern
Last tested: December 2023
Source: EPA UCMR5 utility monitoring plus EPA Water Quality Portal well sampling (mapped to nearest ZIP). Last tested December 2023.
Townships:
  • Northeast St. Louis UT, MN
  • Fall Lake, MN
  • Stony River, MN
  • Morse, MN
Neighborhood:
  • Ely

The short answer for Ely

Ely tap water has 4 detected contaminants, currently below EPA limits (tested September 2023). Lithium measured closest to the threshold. See the full compound-by-compound report.

The health risk for Ely

Lithium was detected in local water tests, currently below EPA limits. Even below-limit detections can still be meaningful for sensitive households, so a targeted certified filter can add protection.
  • PFAS or other chemicals detected; no confirmed exceedances in multiple samples.
Lithium concentration (µg/L) September 2023
0 µg/L 10 µg/L 20 µg/L
4.540 µg/L
Detected
µg/L
10 µg/L
EPA limit
guideline
45% of limit
Comparison
vs. guideline
EPA limit: 10 µg/L | Your water: 4.540 µg/L
Add a Layer of Protection for Ely Tap Water

Lithium was detected below EPA limits. A certified filter can still add an extra layer of protection.

Water filter recommendation for Ely tap water: Epic Pure XP Water Filter Pitcher
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Most elevated compounds

No compounds above or close to EPA limits in available data.

View all tested compounds

450791 · Tested: September 2023

Compound Measurement EPA Limit Comparison
Lithium 4.540 µg/L 10 µg/L 45% of limit
Arsenic 0.462 µg/L 10 µg/L 5% of limit
Lead 0.250 µg/L 15 µg/L 2% of limit
Nitrate + Nitrite 0.020 mg/L 1E+04 mg/L 0.0% of limit
Alkalinity, total 139.000 mg/L
Aluminum 2.590 µg/L
Barium 180.000 µg/L
Boron 79.700 µg/L
Bromide 0.036 mg/L
Calcium 95.900 mg/L
Chloride 148.000 mg/L
Deuterium, delta -86.740 0/00
Fluoride 0.420 mg/L
Iron 1.320 mg/L
Magnesium 18.800 mg/L
Manganese 242.000 µg/L
Oxidation reduction potenti... 126.000 mV
Oxygen Delta 18 -12.280 0/00
Phosphorus 0.006 mg/L
Potassium 1.110 mg/L
Rubidium 1.490 µg/L
Sodium 5.300 mg/L
Strontium 1330.000 µg/L
Sulfate 11.300 mg/L
Tritium 6.100 T.U.
Zinc 7.780 µg/L

TREATMENT PLANT #1 · Tested: December 2023

Compound Measurement EPA Limit Comparison
lithium <9.000 µg/L 10 µg/L Below limit
PFHxS <0.003 µg/L 0.004 µg/L Below limit
HFPO-DA <0.005 µg/L 0.01 µg/L Below limit
PFNA <0.004 µg/L 0.01 µg/L Below limit
PFHxA <0.003 µg/L 3 µg/L Below limit
PFBA <0.005 µg/L 6 µg/L Below limit
11Cl-PF3OUdS <0.005 µg/L 0.005 µg/L Below limit
4:2 FTS <0.003 µg/L 0.003 µg/L Below limit
6:2 FTS <0.005 µg/L 0.005 µg/L Below limit
8:2 FTS <0.005 µg/L 0.005 µg/L Below limit
9Cl-PF3ONS <0.002 µg/L 0.002 µg/L Below limit
ADONA <0.003 µg/L 0.003 µg/L Below limit
PFBS <0.003 µg/L 0.003 µg/L Below limit
PFDA <0.003 µg/L 0.003 µg/L Below limit
PFDoA <0.003 µg/L 0.003 µg/L Below limit
PFHpA <0.003 µg/L 0.003 µg/L Below limit
PFHpS <0.003 µg/L 0.003 µg/L Below limit
PFOA <0.004 µg/L 0.004 µg/L Below limit
PFOS <0.004 µg/L 0.004 µg/L Below limit
PFPeA <0.003 µg/L 0.003 µg/L Below limit
PFTrDA <0.007 µg/L 0.007 µg/L Below limit
PFUnA <0.002 µg/L 0.002 µg/L Below limit

Water utilities serving ZIP 55731

Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.

Modeled boundaries are shown with a dashed outline.

Frequently Asked Questions about ZIP 55731 Tap Water

What's in ZIP 55731 tap water?

ZIP 55731 has 4 detected contaminants below EPA limits in this dataset. Lithium measured closest to its guideline.

Will boiling ZIP 55731 tap water remove Lithium?

No. Boiling tap water does not remove lithium. Lithium is a dissolved mineral, so heat does not break it down and evaporation can actually concentrate it. Reverse osmosis (NSF/ANSI 58) is the most reliable at-home option for reducing lithium.

Do basic pitcher filters remove Lithium?

Standard pitcher filters are not certified to reduce lithium. Reverse osmosis (NSF/ANSI 58) is the most widely available home option for reducing lithium in drinking water.

Who provides tap water in ZIP 55731?

Public records identify ELY as a primary water system associated with ZIP 55731. Service boundaries can vary by address, so confirm exact service with the utility.

When was ZIP 55731 tap water last tested?

The most recent test date used in this report is December 2023. EnviroClarity last refreshed this page on 2026-05-05.

Where can I find the official water quality report for ZIP 55731?

Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact ELY or visit their website for the latest official report covering ZIP 55731. The EPA also maintains a national CCR locator.

Primary source EPA UCMR5 (2023-2025) + EPA WQP (well monitoring near ZIP)
Guideline source EPA drinking water standard (PFBS: 0,003 µg/L)
Last tested December 2023
Last page update 2026-05-05

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    Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.

    Filter Ely tap water → see certified options